The shape of the data is skewed to the right, which says that there are
more small tips, and fewer large tips.

It is unimodal with a peak at $1-2 and gradually falling off to the
right. This says that there are more groups of diners that pay tips in
the range $1-4. Assuming there is a relationship between tip and
total bill this suggests that the total bills may be mostly $15-60
roughly. It suggests the restaurant is not an expensive one.

There are more patrons that pay lower tips and lower total bills, and
fewer and fewer spend at the high end, that is, it is skewed as we
observed when looking at tips alone.

There are lines of points visible at the tips level of $2,3,4 and
to the keen eye also at the $1.50,2.50,3.50 amounts. This says that
same as what we learned from the histograms that patrons tend to round
their tips to the nearest dollar or half dollar amounts.

There is also a lower bound of tip at $1.

There is a linear relationship between tip and total bill, as you
might expect. If you eyeball the the trend it looks to be about 15%.
But there are a lot more points below the diagonal than above, that
is, more patrons tip below the recommended level of 15%than above.

(Note: The scale on both plots is the same, to allow for direct
comparison.)

There appear to be more bills paid by males.

There are more larger bills paid by males, but not too many. The
larger tips/larger bills are paid by males.

The eyeballed slope looks higher for the males than for the females.

(Note that we don't have any more information on the remaining member
s of the dining parties or even the size at this point, so we cannot
tell whether the groups are dining together for business, as friends
or for a romantic tete-a-tete. So we cannot infer whether a guy is
trying to impress his girlfriend on their first date or a business
colleague.)